1994339 has 2 divisors, whose sum is σ = 1994340. Its totient is φ = 1994338.

The previous prime is 1994327. The next prime is 1994341. The reversal of 1994339 is 9334991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1994339 - 2¹² = 1990243 is a prime.

It is a Sophie Germain prime.

Together with 1994341, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1993339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997169 + 997170.

It is an arithmetic number, because the mean of its divisors is an integer number (997170).

2^1994339 is an apocalyptic number.

1994339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1994339 is an equidigital number, since it uses as much as digits as its factorization.

1994339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26244, while the sum is 38.

The square root of 1994339 is about 1412.2106783338. The cubic root of 1994339 is about 125.8731191045.

It can be divided in two parts, 19943 and 39, that multiplied together give a palindrome (777777).

The spelling of 1994339 in words is "one million, nine hundred ninety-four thousand, three hundred thirty-nine".